@@ -1,7 +1,7 @@
common-obj-y += rng.o rng-egd.o
common-obj-$(CONFIG_POSIX) += rng-random.o
-common-obj-y += msmouse.o testdev.o
+common-obj-y += msmouse.o wctablet.o testdev.o
common-obj-$(CONFIG_BRLAPI) += baum.o
baum.o-cflags := $(SDL_CFLAGS)
new file mode 100644
@@ -0,0 +1,347 @@
+/*
+ * QEMU Wacome serial tablet emulation
+ *
+ * Copyright (c) 2008 Lubomir Rintel
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <stdlib.h>
+#include <string.h>
+#include <sys/time.h>
+#include <time.h>
+
+#include "qemu/osdep.h"
+#include "qemu-common.h"
+#include "sysemu/char.h"
+#include "ui/console.h"
+#include "ui/input.h"
+
+
+#define DEBUG_WCTABLET_MOUSE
+
+#ifdef DEBUG_WCTABLET_MOUSE
+#define DPRINTF(fmt, ...) \
+do { fprintf(stderr, fmt , ## __VA_ARGS__); } while (0)
+#else
+#define DPRINTF(fmt, ...) \
+do {} while (0)
+#endif
+
+#define WC_COMMANDS_COUNT 30
+
+#define WC_BUSY_STATE 1
+#define WC_BUSY_WITH_CODES 3
+#define WC_WAITING_STATE 2
+#define WC_OUTPUT_BUF_MAX_LEN 512
+#define WC_COMMAND_MAX_LEN 60
+
+#define WC_L7(n) ((n) & 127)
+#define WC_M7(n) (((n) >> 7) & 127)
+#define WC_H2(n) ((n) >> 14)
+
+#define WC_L4(n) ((n) & 15)
+#define WC_H4(n) (((n) >> 4) & 15)
+
+// Avaliable commands
+uint8_t wctablet_commands[WC_COMMANDS_COUNT][7] = {
+ {0x0a, 0x53, 0x50, 0x0a, 0}, // \nSP\n
+ {0x7e, 0x23, 0}, // ~#
+ {0x0a, 0x54, 0x45, 0x0a, 0}, // \nTE\n
+ {0x52, 0x45, 0x0a, 0}, // RE\n
+ {0x41, 0x53, 0x31, 0x0a, 0}, // AS1\n
+ {0x49, 0x43, 0x31, 0x0a, 0}, // IC1\n
+ {0x4f, 0x43, 0x31, 0x0a, 0}, // OC1\n
+ {0x49, 0x54, 0x88, 0x88, 0}, // IT3\r
+ {0x53, 0x55, 0x88, 0x88, 0}, // SU3\n
+ {0x50, 0x48, 0x31, 0x0a, 0}, // PH1\n
+ {0x0d, 0x53, 0x54, 0x0d, 0}, // \rST\n
+ {0x0d, 0x53, 0x50, 0x0d, 0}, // \rSP\r
+ {0x54, 0x45, 0x0d, 0}, // TE\r
+ {0x53, 0x50, 0x88, 0}, // SP\n
+ {0x23, 0x41, 0x4c, 0x31, 0x0d, 0}, // #AL1\r
+ {0x53, 0x54, 0x88, 0}, // ST\n
+ {0x0d, 0x54, 0x53, 0x88, 0xd, 0}, // \rTS&\r
+ {0x0d, 0x0a, 0x53, 0x50, 0x0d, 0x0a, 0}, // \r\nSP\r\n
+ {0x7e, 0x23, 0x0d, 0} // ~#\r
+};
+
+// Char strings with avaliable commands
+char wctablet_commands_names[WC_COMMANDS_COUNT][12] = {
+ "\\nSP\\n",
+ "~#",
+ "\\nTE\\n",
+ "RE\\n",
+ "AS1\\n",
+ "IC1\\n",
+ "OC1\\n",
+ "IT3\\r",
+ "SU3\\n",
+ "PH1\\n",
+ "\\rST\\n",
+ "\\rSP\\r",
+ "TE\\r",
+ "SP\\n",
+ "#AL1\\r",
+ "ST\\n",
+ "\\rTS&\\r",
+ "\\r\\nSP\\r\\n",
+ "~#\\r"
+};
+
+// Model string and config string
+uint8_t *WC_MODEL_STRING = (uint8_t *) "~#CT-0045R,V1.3-5,";
+size_t WC_MODEL_STRING_LENGTH = 18;
+uint8_t *WC_CONFIG_STRING = (uint8_t *) "96,N,8,0";
+size_t WC_CONFIG_STRING_LENGTH = 8;
+uint8_t WC_FULL_CONFIG_STRING[61] = {
+ 0x5c, 0x39, 0x36, 0x2c, 0x4e, 0x2c, 0x38, 0x2c,
+ 0x31, 0x28, 0x01, 0x24, 0x57, 0x41, 0x43, 0x30,
+ 0x30, 0x34, 0x35, 0x5c, 0x5c, 0x50, 0x45, 0x4e, 0x5c,
+ 0x57, 0x41, 0x43, 0x30, 0x30, 0x30, 0x30, 0x5c,
+ 0x54, 0x61, 0x62, 0x6c, 0x65, 0x74, 0x0d, 0x0a,
+ 0x43, 0x54, 0x2d, 0x30, 0x30, 0x34, 0x35, 0x52,
+ 0x2c, 0x56, 0x31, 0x2e, 0x33, 0x2d, 0x35, 0x0d,
+ 0x0a, 0x45, 0x37, 0x29
+};
+size_t WC_FULL_CONFIG_STRING_LENGTH = 61;
+int count = 0;
+int COMMON_SPEAD = 900 * 1000;
+
+
+// This structure is used to save private info for Wacom Tablet.
+typedef struct {
+ struct QEMUTimer *transmit_timer;
+ /* QEMU timer */
+ uint64_t transmit_time;
+ /* time to transmit a char in ticks */
+ uint8_t query[100];
+ int query_index;
+ /* Query string from serial */
+ uint8_t outbuf[WC_OUTPUT_BUF_MAX_LEN];
+ int outlen;
+ /* Command to be sent to serial port */
+} TabletState;
+
+static int wctablet_memcmp(uint8_t *a1, uint8_t *a2, int count)
+{
+ int i;
+
+ for (i = 0; i < count; i++) {
+ if (a1[i] != a2[i] && a2[i] != 0x88) {
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int wctablet_check_command(uint8_t *arr, int count)
+{
+ int i;
+
+ for (i = 0; i < WC_COMMANDS_COUNT; i++) {
+ if (wctablet_memcmp(arr, wctablet_commands[i], count) == 0 &&
+ wctablet_commands[i][count] == 0) {
+ return i;
+ }
+ }
+
+ return -1;
+}
+
+static void wctablet_event(void *opaque, int x,
+ int y, int dz, int buttons_state)
+{
+ CharDriverState *chr = (CharDriverState *) opaque;
+ TabletState *tablet = (TabletState *) chr->opaque;
+ uint8_t codes[8] = { 0xe0, 0, 0, 0, 0, 0, 0 };
+ // uint8_t codes[8] = { 0xa0, 0x0e, 0x06, 0x00, 0x13, 0x3b, 0x00 };
+ // uint8_t codes[8] = { 0xe0, 0x05, 0x6a, 0x00, 0x06, 0x64, 0x40 };
+ // uint8_t codes[8] = { 0xa0, 0x1c, 0x29, 0x00, 0x19, 0x1c, 0x00 };
+
+ DPRINTF("x= %d; y= %d; buttons=%x\n", x, y, buttons_state);
+ int newX = x * 0.1537;
+ int nexY = y * 0.1152;
+
+ codes[0] = codes[0] | WC_H2(newX);
+ codes[1] = codes[1] | WC_M7(newX);
+ codes[2] = codes[2] | WC_L7(newX);
+
+ codes[3] = codes[3] | WC_H2(nexY);
+ codes[4] = codes[4] | WC_M7(nexY);
+ codes[5] = codes[5] | WC_L7(nexY);
+
+ if (buttons_state == 0x01) {
+ codes[0] = 0xa0;
+ }
+
+ if (tablet->outlen + 7 < WC_OUTPUT_BUF_MAX_LEN) {
+ memcpy(tablet->outbuf + tablet->outlen, codes, 7);
+ tablet->outlen += 7;
+ }
+}
+
+static void wctablet_handler(void *opaque)
+{
+ CharDriverState *chr = (CharDriverState *) opaque;
+ TabletState *tablet = (TabletState *) chr->opaque;
+ int len, canWrite; // , i;
+
+ canWrite = qemu_chr_be_can_write(chr);
+ len = canWrite;
+ if (len > tablet->outlen) {
+ len = tablet->outlen;
+ }
+
+ if (len) {
+ // DPRINTF("-------- Write %2d: ", canWrite);
+ // for (i = 0; i < len; i++) {
+ // DPRINTF(" %02x", tablet->outbuf[i]);
+ // }
+ // DPRINTF("\n");
+
+ qemu_chr_be_write(chr, tablet->outbuf, len);
+ tablet->outlen -= len;
+ if (tablet->outlen) {
+ memmove(tablet->outbuf, tablet->outbuf + len, tablet->outlen);
+ }
+ }
+
+ timer_mod(tablet->transmit_timer,
+ qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + tablet->transmit_time);
+}
+
+static int wctablet_chr_write (struct CharDriverState *s,
+ const uint8_t *buf, int len)
+{
+ TabletState *tablet = (TabletState *) s->opaque;
+ uint8_t c = buf[0];
+ uint8_t input;
+
+ if (c == 0x40) {
+ return len;
+ }
+
+ tablet->query[tablet->query_index++] = c;
+
+ // DPRINTF("Receive: %.2x\n", c);
+
+ int comm = wctablet_check_command(tablet->query, tablet->query_index);
+
+ if (comm == 1) {
+ count++;
+ }
+
+ if (comm != -1) {
+ if (comm == 1 && count == 2) {
+ memcpy(tablet->outbuf + tablet->outlen, WC_MODEL_STRING, WC_MODEL_STRING_LENGTH);
+ tablet->outlen += WC_MODEL_STRING_LENGTH;
+ }
+
+ if (comm == 3) {
+ memcpy(tablet->outbuf + tablet->outlen, WC_CONFIG_STRING, WC_CONFIG_STRING_LENGTH);
+ tablet->outlen += WC_CONFIG_STRING_LENGTH;
+ }
+
+ if (comm == 18) {
+ memcpy(tablet->outbuf + tablet->outlen, WC_FULL_CONFIG_STRING, WC_FULL_CONFIG_STRING_LENGTH);
+ tablet->outlen += WC_FULL_CONFIG_STRING_LENGTH;
+ }
+
+ if (comm == 16) {
+ input = tablet->query[3];
+ uint8_t codes[7] = {
+ 0xa3,
+ 0x88,
+ 0x88,
+ 0x03,
+ 0x7f,
+ 0x7f,
+ 0x00
+ };
+ codes[1] = ((input & 0x80) == 0) ? 0x7e : 0x7f;
+ codes[2] = ( ( ( WC_H4(input) & 0x7 ) ^ 0x5) << 4 ) | (WC_L4(input) ^ 0x7);
+
+ memcpy(tablet->outbuf + tablet->outlen, codes, 7);
+ tablet->outlen += 7;
+ }
+
+ // DPRINTF("-------- Command: %s\n", wctablet_commands_names[comm]);
+
+ tablet->query_index = 0;
+ }
+
+ return len;
+}
+
+static void wctablet_chr_free(struct CharDriverState *chr)
+{
+ g_free (chr->opaque);
+ g_free (chr);
+}
+
+static CharDriverState *qemu_chr_open_wctablet(const char *id,
+ ChardevBackend *backend,
+ ChardevReturn *ret,
+ bool *be_opened,
+ Error **errp)
+{
+ ChardevCommon *common = backend->u.wctablet.data;
+ CharDriverState *chr;
+ TabletState *tablet;
+
+ chr = qemu_chr_alloc(common, errp);
+ tablet = g_malloc0(sizeof(TabletState));
+ if (!chr) {
+ return NULL;
+ }
+ chr->chr_write = wctablet_chr_write;
+ chr->chr_free = wctablet_chr_free;
+ *be_opened = true;
+
+ /* create a new QEMU's timer with wctablet_handler() as timeout handler. */
+ tablet->transmit_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL,
+ (QEMUTimerCB *) wctablet_handler, chr);
+
+ tablet->transmit_time = COMMON_SPEAD;
+
+ timer_mod(tablet->transmit_timer,
+ qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) + tablet->transmit_time);
+
+
+ /* init state machine */
+ memcpy(tablet->outbuf, WC_FULL_CONFIG_STRING, WC_FULL_CONFIG_STRING_LENGTH);
+ tablet->outlen = WC_FULL_CONFIG_STRING_LENGTH;
+ tablet->query_index = 0;
+
+ chr->opaque = tablet;
+
+ qemu_add_mouse_event_handler(wctablet_event, chr, 1,
+ "QEMU Wacome Pen Tablet");
+
+ return chr;
+}
+
+static void register_types(void)
+{
+ register_char_driver("wctablet", CHARDEV_BACKEND_KIND_WCTABLET, NULL,
+ qemu_chr_open_wctablet);
+}
+
+type_init(register_types);
@@ -200,7 +200,7 @@ LEGACY-CHARDEV translates to -chardev HOST-OPTS... as follows:
* null becomes -chardev null
-* pty, msmouse, braille, stdio likewise
+* pty, msmouse, wctablet, braille, stdio likewise
* vc:WIDTHxHEIGHT becomes -chardev vc,width=WIDTH,height=HEIGHT
@@ -3879,6 +3879,7 @@
'null' : 'ChardevCommon',
'mux' : 'ChardevMux',
'msmouse': 'ChardevCommon',
+ 'wctablet' : 'ChardevCommon',
'braille': 'ChardevCommon',
'testdev': 'ChardevCommon',
'stdio' : 'ChardevStdio',
@@ -3734,6 +3734,7 @@ QemuOpts *qemu_chr_parse_compat(const char *label, const char *filename)
if (strcmp(filename, "null") == 0 ||
strcmp(filename, "pty") == 0 ||
strcmp(filename, "msmouse") == 0 ||
+ strcmp(filename, "wctablet") == 0 ||
strcmp(filename, "braille") == 0 ||
strcmp(filename, "testdev") == 0 ||
strcmp(filename, "stdio") == 0) {